US6634470B2 - Brake pad - Google Patents
Brake pad Download PDFInfo
- Publication number
- US6634470B2 US6634470B2 US10/021,256 US2125601A US6634470B2 US 6634470 B2 US6634470 B2 US 6634470B2 US 2125601 A US2125601 A US 2125601A US 6634470 B2 US6634470 B2 US 6634470B2
- Authority
- US
- United States
- Prior art keywords
- brake pad
- back plate
- indentation
- metal back
- pad according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
- F16D2069/006—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure comprising a heat-insulating layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0078—Materials; Production methods therefor laminated
Definitions
- the invention relates to a brake pad, in particular used for disc brakes, comprising a metal back plate provided with profiles and at least one friction lining attached thereto.
- a brake pad is disclosed in the DE-A 197 06 123, in which the back plate has at least two sections with different thickness in circumferential direction.
- the sections at the same time should be designed to relieve the thermal stress on an activation element that operatively engages the brake pad. Described are wave-shaped profiles, rectangular profiles, indentations, depressions or the like. Even if a certain thermal de-stressing or uncoupling can already be realized with this, undesirable temperatures resulting from increased braking forces are still effective in the region of the activation element, particularly the brake cylinder or its peripheral components, which can result in damages.
- a brake pad having a metal back plate with a friction lining (e.g. the brake pad) attached to it is also disclosed in the U.S. Pat. No. 6,041,893.
- the area between friction lining and back plate contains at least one additional layer, to which certain damping qualities are assigned and which sounds acoustical warnings when the friction lining is abraded.
- the subject matter of the invention permits a clear uncoupling (e.g., dissipation) of the heat flow between friction lining (e.g., of the brake pad) and activation or actuating element, especially the brake cylinder, as well as all components connected thereto, such as sealing members or the like.
- the frictional heat transferred in particular from the brake disc to the friction lining when the brake cylinder(s) is (are) activated thus no longer disseminates directly to the metal back plate and therefore also the activation element. Rather, the subsequently installed material with low heat conductivity, provided in particular in the profiles, mostly compensates for the temperature.
- a further uncoupling (dissipation of heat) of the temperature flow is realized with the special profile design, particularly the raised areas that extend only partially in the direction of the activation element.
- the segment-like raised areas in particular arranged partially along the periphery of a circle, essentially remain inside the diameter (the cross-sectional surface) of the activation element(s), so that the area of contact between said element(s) and the metal back plate is limited to these segments.
- the material with lower heat conductivity can either be provided only in the region of the profiles or can be arranged such that it extends over the imagined circular periphery of the segments.
- the material with low heat conductivity can also be allowed to extend essentially over the cross-sectional surface of the friction lining, between the lining and the metal back plate.
- the metal back plate can either be a cast iron plate with formed-in profiles or a conventional steel back plate with corresponding embossed areas.
- the profiles projecting from the metal back plate in the direction of the activation element preferably have a height of ⁇ 2 mm, in particular of between 0.5 and 1.0 mm.
- the subject matter of the invention preferably is used with all disc brakes (hydraulic and pneumatic). This solution also makes it possible to dispense with additional layers, as described in the prior art according to the U.S. Pat. No. 6,041,893.
- Preferred materials for the profiles, which exhibit decreased thermal conductivity compared to the frictional lining comprise, consist essentially of and consist of as well as their compounds, the following components: magnesium oxide, vermiculite, fibers, in particular PAN (polyacrylnitrile) fibers, rock wool, recycled materials and resins, especially phenol resins; also conceivable are admixtures of silicic acid and glass fibers as well as wollastonite.
- magnesium oxide magnesium oxide
- vermiculite fibers
- PAN polyacrylnitrile fibers
- rock wool rock wool
- recycled materials and resins especially phenol resins
- admixtures of silicic acid and glass fibers as well as wollastonite.
- the following is a list of possible ranges for materials with low heat conductivity (all information provided in weight %):
- FIG. 1 is a schematic diagram showing different views of a brake pad.
- FIG. 2 is a view along the line II—II in FIG. 1 .
- FIG. 3 is a schematic diagram of a brake pad with two activation elements.
- FIG. 4 is a representation of segment-shaped raised areas on the back plate of the brake pad.
- FIG. 5 is a cross section through a section of the brake pad shown in FIG. 3 .
- FIG. 1 shows a brake pad 1 according to the invention, comprising a metal back plate 2 as well as a friction lining 3 , for example attached to the back plate 2 with vulcanization.
- the brake pad 1 operates jointly with a brake cylinder 4 or actuating as activation element and is provided with a profiling 5 in the form of a depression/raised area.
- the cross-sectional shape of this area is essentially provided within the diameter d of brake cylinder 4 .
- the metal back plate 2 for this example is a steel plate with embossed [molded-in] profile 5 .
- a lining material 6 with lower heat conductivity than the friction material 3 itself is inserted on the friction lining side into the profile 5 .
- the profile 5 has a circular cross-sectional surface (FIG. 2 ).
- FIG. 3 shows another schematic diagram of a brake pad 1 ′, comprising a cast iron back plate 2 ′ as well as a friction lining 3 ′.
- Two brake cylinders 4 ′ are used for this example.
- FIG. 4 shows a cross-sectional view through the back plate 2 ′, along the line IV—IV, wherein segment-shaped profiles 5 ′ are provided in the brake cylinder 4 ′ region and are arranged along an imagined circular periphery. These profile-shaped areas 7 ′ extend in the direction of the force component and were molded into the cast-iron plate 2 ′ during the production.
- FIG. 5 shows a section along the line B—B in FIG. 4 . Visible are the back plate 2 ′, the friction lining 3 ′ as well as the worked in profiles 5 ′, which form a depression on the friction-layer side and a raised area 7 ′ on the force component side. As previously mentioned in connection with FIG. 1, a lining material 6 with reduced heat conductivity relative to the friction lining is provided on the side of the friction lining.
- FIGS. 2 to 5 show that the areas with raised profile 7 , 7 ′ are essentially provided within the cross-sectional area of the respective brake cylinder 4 . Heat can thus be transferred exclusively in those regions from the friction lining 3 ′ via the back plate 2 ′ in the direction of the brake cylinder 4 ′. As a result of the lining material 6 ′, the transfer of heat is reduced in such a way that damages to the brake cylinder 4 ′ and the cooperating components, such a protective caps or the like, can be securely avoided.
- the profiles 7 , 7 ′ in this example have a height of 1.0 mm.
- the material 6 , 6 ′ used for the exemplary embodiments has the following composition (all data provided in weight %). However, the subject matter of the invention is not limited to this composition.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
magnesium oxide | 10-14% | ||
vermiculite | 30-35% | ||
PAN fibers | 1-2% | ||
rock wool | 18-22% | ||
glass fiber | 1-3% | ||
wollastonite | 6-8% | ||
phenol resin | 12-16% | ||
recycled material | 5-8% | ||
silicic acid | 3-5% | ||
Magnesium oxide | 12.00 | ||
vermiculite | 33.00 | ||
PAN fibers | 1.50 | ||
rock wool | 20.00 | ||
glass fiber | 2.00 | ||
wollastonite | 7.00 | ||
phenol resin | 14.00 | ||
recycled material | 6.50 | ||
silicic acid | 4.00 | ||
Claims (7)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10063362 | 2000-12-19 | ||
DE10063362.5 | 2000-12-19 | ||
DE10063362A DE10063362B4 (en) | 2000-12-19 | 2000-12-19 | Brake shoe, especially for disc brakes |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020129996A1 US20020129996A1 (en) | 2002-09-19 |
US6634470B2 true US6634470B2 (en) | 2003-10-21 |
Family
ID=7667837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/021,256 Expired - Fee Related US6634470B2 (en) | 2000-12-19 | 2001-12-19 | Brake pad |
Country Status (6)
Country | Link |
---|---|
US (1) | US6634470B2 (en) |
EP (1) | EP1217246B2 (en) |
AT (1) | ATE344401T1 (en) |
DE (2) | DE10063362B4 (en) |
DK (1) | DK1217246T3 (en) |
ES (1) | ES2272396T3 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020108821A1 (en) * | 2001-02-10 | 2002-08-15 | Dr. Ing. H.C.F. Porsche Ag | Lining devices for a disk brake and a method of making same |
US20030213658A1 (en) * | 2002-05-16 | 2003-11-20 | Advics Co., Ltd. | Disc brake |
US20100038194A1 (en) * | 2007-01-09 | 2010-02-18 | Emmett Robert A | Disk brake pad having reduced heat transfer to an application device |
US20130240311A1 (en) * | 2010-10-29 | 2013-09-19 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Brake Pad for a Disc Brake |
US20160333948A1 (en) * | 2014-01-29 | 2016-11-17 | Sumitomo Bakelite Co., Ltd. | Brake pad and caliper device |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005048109A1 (en) * | 2004-10-12 | 2006-04-20 | Miba Frictec Gmbh | Brake shoe for a disc brake |
ES2300951T3 (en) * | 2005-02-10 | 2008-06-16 | Federal-Mogul Friction Products Gmbh | DISC BRAKE SHOE SET. |
DE102006010215B3 (en) | 2006-03-06 | 2007-10-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | disc brake |
DE102006039547A1 (en) * | 2006-08-23 | 2008-03-27 | Federal-Mogul Friction Products Gmbh | Brake pad with increased heat radiation |
DE102007025113B4 (en) * | 2007-05-30 | 2016-03-03 | Federal-Mogul Friction Products Gmbh | Disc brake pad with heat protection for a dust cover of a caliper |
DE102007029839B4 (en) * | 2007-06-28 | 2009-04-16 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Brake pad for a disc brake |
ITTO20070678A1 (en) * | 2007-09-26 | 2009-03-27 | Fq Innovation Technology S R L | BRAKING GROUP FOR MOTOR VEHICLES, MOTORCYCLES AND SIMILARS |
DE102008005432A1 (en) * | 2008-01-22 | 2009-07-30 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake for a commercial vehicle and brake pad for a disc brake |
DE102014017715A1 (en) * | 2014-12-01 | 2016-06-02 | Wabco Europe Bvba | Pneumatically or electromechanically actuated disc brake for commercial vehicles |
DE102022201715A1 (en) | 2022-02-18 | 2023-08-24 | Hl Mando Corporation | Brake pad for a disc brake system and disc brake system |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3064769A (en) * | 1958-04-07 | 1962-11-20 | Bendix Corp | Fastener construction and processes of mounting metal-ceramic compositions |
US3490563A (en) * | 1967-01-20 | 1970-01-20 | Teves Gmbh Alfred | Disk brake with noise-limiting brakeshoe |
US3563347A (en) * | 1968-01-10 | 1971-02-16 | Teves Gmbh Alfred | Disk brake with noise-limiting brakeshoe |
US3693764A (en) * | 1970-02-21 | 1972-09-26 | Itt | Spot-type disc brake shoe |
DE2935943A1 (en) | 1979-09-06 | 1981-03-12 | Kurt 5000 Köln Stahl | Support plate for friction block - comprises ceramic moulding wrapped in outer malleable metal covering to prevent breakage |
DE3006406A1 (en) | 1980-02-21 | 1981-08-27 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Friction pad assembly for disc brake - includes insulating layer to prevent heat transfer to hydraulic fluid |
US4552252A (en) * | 1979-09-06 | 1985-11-12 | Kurt Stahl | Carrier body for a disc brake pad |
US4914801A (en) * | 1987-03-10 | 1990-04-10 | Ferodo Limited | Method of manufacturing a disc brake pad |
US5083643A (en) * | 1989-10-10 | 1992-01-28 | Abex Corporation | Noise abating brake shoe |
DE4126841A1 (en) | 1991-08-14 | 1993-02-18 | Otto Kurt Stahl | PLATE SHAPED BACK BODY FOR A FRICTION BLOCK FOR DISC BRAKES |
US5429216A (en) * | 1993-07-23 | 1995-07-04 | Westinghouse Air Brake Company | Disc brake shoe assembly |
US5515950A (en) * | 1994-06-08 | 1996-05-14 | Pneumo Abex Corporation | Disc brake friction pad assembly |
DE19706123A1 (en) | 1997-02-17 | 1998-08-20 | Itt Mfg Enterprises Inc | Automotive disc brake shoe |
US6041893A (en) | 1996-12-19 | 2000-03-28 | Textar Gmbh | Brake jaw |
US6135244A (en) * | 1996-07-22 | 2000-10-24 | Alliedsignal Materiaux De Friction | Plate device for supporting at least one brake pad for a vehicle disc brake |
US6283258B1 (en) * | 2000-08-29 | 2001-09-04 | Ford Global Technologies, Inc. | Brake assembly with noise damping |
US6390251B1 (en) * | 2000-08-23 | 2002-05-21 | Tsutomu Hasegawa | Back plate attached to the disk brake pad, and method of manufacturing the same |
US6405840B1 (en) * | 1999-11-19 | 2002-06-18 | Meritor Heavy Vehicle Systems, Llc | Rigid panel attachment for brake linings |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5790931A (en) † | 1980-11-27 | 1982-06-05 | Matsushita Electric Ind Co Ltd | Method of producing composite function element |
JPS58211031A (en) * | 1982-06-03 | 1983-12-08 | Akebono Brake Ind Co Ltd | Friction material |
JPS608534A (en) * | 1983-06-28 | 1985-01-17 | Toyo Carbon Kk | Sintering metal brake pad |
US4685543A (en) * | 1985-03-27 | 1987-08-11 | Jurid Werke | Support plate for a friction lining of a disc brake |
JPS61270529A (en) † | 1985-05-24 | 1986-11-29 | Nippon Air Brake Co Ltd | Disc brake |
GB9020070D0 (en) † | 1990-09-14 | 1990-10-24 | Ferodo Ltd | Improvements in or relating to brake pads |
DE4115614A1 (en) * | 1991-03-15 | 1992-09-17 | Otto Kurt Stahl | FRICTION BLOCK FOR A DISC BRAKE |
GB2259553A (en) * | 1991-09-07 | 1993-03-17 | Ferodo Ltd | A disc brake pad |
DE4201893A1 (en) † | 1992-01-24 | 1993-07-29 | Ruetgers Pagid Ag | METHOD FOR REPRODUCING NO LONGER USE OF BRAKE AND COUPLING PADS |
DE60006170T2 (en) † | 1999-02-22 | 2004-07-15 | Nisshinbo Industries, Inc. | Asbestos-free friction materials |
-
2000
- 2000-12-19 DE DE10063362A patent/DE10063362B4/en not_active Expired - Lifetime
-
2001
- 2001-11-24 DE DE50111353T patent/DE50111353D1/en not_active Expired - Lifetime
- 2001-11-24 DK DK01127995T patent/DK1217246T3/en active
- 2001-11-24 AT AT01127995T patent/ATE344401T1/en not_active IP Right Cessation
- 2001-11-24 EP EP01127995A patent/EP1217246B2/en not_active Expired - Lifetime
- 2001-11-24 ES ES01127995T patent/ES2272396T3/en not_active Expired - Lifetime
- 2001-12-19 US US10/021,256 patent/US6634470B2/en not_active Expired - Fee Related
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3064769A (en) * | 1958-04-07 | 1962-11-20 | Bendix Corp | Fastener construction and processes of mounting metal-ceramic compositions |
US3490563A (en) * | 1967-01-20 | 1970-01-20 | Teves Gmbh Alfred | Disk brake with noise-limiting brakeshoe |
US3563347A (en) * | 1968-01-10 | 1971-02-16 | Teves Gmbh Alfred | Disk brake with noise-limiting brakeshoe |
US3693764A (en) * | 1970-02-21 | 1972-09-26 | Itt | Spot-type disc brake shoe |
DE2935943A1 (en) | 1979-09-06 | 1981-03-12 | Kurt 5000 Köln Stahl | Support plate for friction block - comprises ceramic moulding wrapped in outer malleable metal covering to prevent breakage |
US4552252A (en) * | 1979-09-06 | 1985-11-12 | Kurt Stahl | Carrier body for a disc brake pad |
DE3006406A1 (en) | 1980-02-21 | 1981-08-27 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Friction pad assembly for disc brake - includes insulating layer to prevent heat transfer to hydraulic fluid |
US4914801A (en) * | 1987-03-10 | 1990-04-10 | Ferodo Limited | Method of manufacturing a disc brake pad |
US5083643A (en) * | 1989-10-10 | 1992-01-28 | Abex Corporation | Noise abating brake shoe |
DE4126841A1 (en) | 1991-08-14 | 1993-02-18 | Otto Kurt Stahl | PLATE SHAPED BACK BODY FOR A FRICTION BLOCK FOR DISC BRAKES |
US5429216A (en) * | 1993-07-23 | 1995-07-04 | Westinghouse Air Brake Company | Disc brake shoe assembly |
US5515950A (en) * | 1994-06-08 | 1996-05-14 | Pneumo Abex Corporation | Disc brake friction pad assembly |
US6135244A (en) * | 1996-07-22 | 2000-10-24 | Alliedsignal Materiaux De Friction | Plate device for supporting at least one brake pad for a vehicle disc brake |
US6041893A (en) | 1996-12-19 | 2000-03-28 | Textar Gmbh | Brake jaw |
DE19706123A1 (en) | 1997-02-17 | 1998-08-20 | Itt Mfg Enterprises Inc | Automotive disc brake shoe |
US6405840B1 (en) * | 1999-11-19 | 2002-06-18 | Meritor Heavy Vehicle Systems, Llc | Rigid panel attachment for brake linings |
US6390251B1 (en) * | 2000-08-23 | 2002-05-21 | Tsutomu Hasegawa | Back plate attached to the disk brake pad, and method of manufacturing the same |
US6283258B1 (en) * | 2000-08-29 | 2001-09-04 | Ford Global Technologies, Inc. | Brake assembly with noise damping |
Non-Patent Citations (1)
Title |
---|
Ogiwara NGAO, "Friction Material", Patent Abstracts of Japan No. 58-211031, published on Dec. 8, 1983. * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020108821A1 (en) * | 2001-02-10 | 2002-08-15 | Dr. Ing. H.C.F. Porsche Ag | Lining devices for a disk brake and a method of making same |
US20030213658A1 (en) * | 2002-05-16 | 2003-11-20 | Advics Co., Ltd. | Disc brake |
US20100038194A1 (en) * | 2007-01-09 | 2010-02-18 | Emmett Robert A | Disk brake pad having reduced heat transfer to an application device |
US20130240311A1 (en) * | 2010-10-29 | 2013-09-19 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Brake Pad for a Disc Brake |
US9188179B2 (en) * | 2010-10-29 | 2015-11-17 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Brake pad for a disc brake |
US20160333948A1 (en) * | 2014-01-29 | 2016-11-17 | Sumitomo Bakelite Co., Ltd. | Brake pad and caliper device |
Also Published As
Publication number | Publication date |
---|---|
EP1217246B1 (en) | 2006-11-02 |
DE10063362A1 (en) | 2002-07-04 |
US20020129996A1 (en) | 2002-09-19 |
EP1217246A1 (en) | 2002-06-26 |
ES2272396T3 (en) | 2007-05-01 |
DK1217246T3 (en) | 2007-01-02 |
ATE344401T1 (en) | 2006-11-15 |
DE10063362B4 (en) | 2005-05-12 |
DE50111353D1 (en) | 2006-12-14 |
EP1217246B2 (en) | 2011-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FEDERAL-MOGUL FRICTION PRODUCTS GMBH, ZWEIGNIEDERL Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EMMET, ROBERT A.;STRAUSS, WILFRIED;REEL/FRAME:012400/0535 Effective date: 20011218 |
|
AS | Assignment |
Owner name: FEDERAL-MOGUL FRICTION PRODUCTS GMBH, ZWEIGNIEDERL Free format text: TO CORRECT ASSIGNEE'S ADDRESS ON REEL 012400 FRAME 0535.;ASSIGNORS:EMMET, ROBERT A.;STRAUSS, WILFRIED;REEL/FRAME:012706/0290 Effective date: 20011218 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20111021 |